EP3992145A4 - Method for removing phosphorus from phosphorus-containing substance, method for producing starting material for metal smelting or starting material for metal refining, and method for producing metal - Google Patents

Method for removing phosphorus from phosphorus-containing substance, method for producing starting material for metal smelting or starting material for metal refining, and method for producing metal Download PDF

Info

Publication number
EP3992145A4
EP3992145A4 EP20831257.9A EP20831257A EP3992145A4 EP 3992145 A4 EP3992145 A4 EP 3992145A4 EP 20831257 A EP20831257 A EP 20831257A EP 3992145 A4 EP3992145 A4 EP 3992145A4
Authority
EP
European Patent Office
Prior art keywords
metal
starting material
producing
phosphorus
containing substance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20831257.9A
Other languages
German (de)
French (fr)
Other versions
EP3992145A1 (en
Inventor
Rei Yamada
Kenji Nakase
Yoshie Nakai
Naoki Kikuchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
JFE Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JFE Steel Corp filed Critical JFE Steel Corp
Priority claimed from PCT/JP2020/018445 external-priority patent/WO2020261767A1/en
Publication of EP3992145A1 publication Critical patent/EP3992145A1/en
Publication of EP3992145A4 publication Critical patent/EP3992145A4/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/11—Removing sulfur, phosphorus or arsenic other than by roasting
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/082—Compounds containing nitrogen and non-metals and optionally metals
    • C01B21/097—Compounds containing nitrogen and non-metals and optionally metals containing phosphorus atoms
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/064—Dephosphorising; Desulfurising
    • C21C7/0645—Agents used for dephosphorising or desulfurising
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/072—Treatment with gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/10—Handling in a vacuum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
EP20831257.9A 2019-06-25 2020-05-01 Method for removing phosphorus from phosphorus-containing substance, method for producing starting material for metal smelting or starting material for metal refining, and method for producing metal Pending EP3992145A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2019117307 2019-06-25
JP2019117329 2019-06-25
PCT/JP2020/018445 WO2020261767A1 (en) 2019-06-25 2020-05-01 Method for removing phosphorus from phosphorus-containing substance, method for producing starting material for metal smelting or starting material for metal refining, and method for producing metal

Publications (2)

Publication Number Publication Date
EP3992145A1 EP3992145A1 (en) 2022-05-04
EP3992145A4 true EP3992145A4 (en) 2022-08-17

Family

ID=73646815

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20831257.9A Pending EP3992145A4 (en) 2019-06-25 2020-05-01 Method for removing phosphorus from phosphorus-containing substance, method for producing starting material for metal smelting or starting material for metal refining, and method for producing metal

Country Status (6)

Country Link
US (1) US20220372591A1 (en)
EP (1) EP3992145A4 (en)
JP (1) JP6798654B1 (en)
KR (1) KR102597737B1 (en)
CN (1) CN114026041A (en)
BR (1) BR112021025216A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2001123C1 (en) * 1991-06-28 1993-10-15 Московский институт стали и сплавов Method for removing phosphorous compound of metal
JPH08176631A (en) * 1994-12-21 1996-07-09 Kawasaki Steel Corp Operation of vertical type metal smelting reduction furnace
EP3042965A1 (en) * 2015-01-09 2016-07-13 S.A. Lhoist Recherche Et Developpement Process for dephosphorization of molten metal during a refining process
EP3733882A1 (en) * 2017-12-26 2020-11-04 JFE Steel Corporation Method for removing phosphorus from phosphorus-containing substance

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5940209B2 (en) * 1977-12-16 1984-09-28 新日本製鐵株式会社 How to remove phosphorus from ore
JPS5675507A (en) * 1979-11-21 1981-06-22 Sumitomo Metal Ind Ltd Regenerating method of converter slag
JPS60261501A (en) 1984-06-08 1985-12-24 Nippon Touseki Kk Dephosphorization of iron ore
JP2000119759A (en) 1998-10-13 2000-04-25 Kawasaki Steel Corp Dephosphorizing method for iron ore
CN100575512C (en) * 2008-07-03 2009-12-30 太原理工大学 A kind of microwave heating, solid state reduction and gaseous dephosphorization method of manganese ore powder
JP5332651B2 (en) * 2008-12-26 2013-11-06 Ｊｆｅスチール株式会社 Method for recovering iron and phosphorus from steelmaking slag
JP6597332B2 (en) * 2016-01-18 2019-10-30 日本製鉄株式会社 Phosphate fertilizer manufacturing method and phosphate fertilizer manufacturing apparatus
CN105907947B (en) * 2016-06-03 2018-08-28 江苏省冶金设计院有限公司 It prepares the method for iron powder and prepares the system of iron powder
CN109321704B (en) * 2018-10-30 2021-02-26 华北理工大学 Smelting method for reducing phosphorus content of smelting final slag by slag splashing furnace protection

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2001123C1 (en) * 1991-06-28 1993-10-15 Московский институт стали и сплавов Method for removing phosphorous compound of metal
JPH08176631A (en) * 1994-12-21 1996-07-09 Kawasaki Steel Corp Operation of vertical type metal smelting reduction furnace
EP3042965A1 (en) * 2015-01-09 2016-07-13 S.A. Lhoist Recherche Et Developpement Process for dephosphorization of molten metal during a refining process
EP3733882A1 (en) * 2017-12-26 2020-11-04 JFE Steel Corporation Method for removing phosphorus from phosphorus-containing substance

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2020261767A1 *

Also Published As

Publication number Publication date
JPWO2020261767A1 (en) 2021-09-13
KR102597737B1 (en) 2023-11-02
JP6798654B1 (en) 2020-12-09
BR112021025216A2 (en) 2022-02-01
CN114026041A (en) 2022-02-08
KR20220002544A (en) 2022-01-06
US20220372591A1 (en) 2022-11-24
EP3992145A1 (en) 2022-05-04

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